{"product_id":"mahle-ms-84-89-porsche-911-carrera-3-4l-98mm-bore-74-4mm-stroke-127mm-rod-22mm-pin-43-2cc-11cr","title":"Mahle MS 84-89 Porsche 911 Carrera 3.4L 98mm Bore 74.4mm Stroke 127mm Rod 23mm Pin 43.2cc 11CR - PS98-017","description":"\u003cp\u003eMAHLE Motorsport piston and cylinder kit for the 1984-1989 Porsche 911 Carrera, taking the 3.2L air-cooled flat-six to 3.4L with a 98 mm bore on the factory 74.4 mm stroke. The kit pairs a set of six forged 2618-alloy pistons (PP98-017) with matching PC98-001 cylinders and includes a 1.2 \/ 1.2 \/ 3.0 mm performance ring set. It is compatible with dual-plug cylinder heads and high-lift cams (DC80).\u003c\/p\u003e\n\u003cp\u003eMAHLE's relationship with Porsche dates back to Porsche's beginning, and MAHLE Motorsport North America drew on that OE and racing experience to develop its air-cooled performance kits. The pistons are machined from forgings with narrower, shorter skirts to reduce weight and friction, and the cylinders are produced and machined to original-equipment tolerances for performance, durability and longevity. These kits are modern adaptations of the original parts, so visual differences from factory components are intentional.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eKit Part Number:\u003c\/strong\u003e PS98-017 (pistons PP98-017, cylinders PC98-001)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eBore:\u003c\/strong\u003e 98.00 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eStroke:\u003c\/strong\u003e 74.4 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eRod Length:\u003c\/strong\u003e 127 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eCompression Height:\u003c\/strong\u003e 32.8 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ePin Diameter:\u003c\/strong\u003e 23 mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eCrown Volume:\u003c\/strong\u003e 43.2 cc\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ePiston Weight:\u003c\/strong\u003e 457 g\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 11.0:1 (92 cc chamber, calculated at 1 mm below deck)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ePiston Alloy:\u003c\/strong\u003e 2618 forged aluminum\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eRing Set:\u003c\/strong\u003e 1.2 \/ 1.2 \/ 3.0 mm performance rings, included\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eClearance Guide:\u003c\/strong\u003e 0.0006-0.0014 in (measured at 0.250 in)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e1984-1989 Porsche 911 Carrera 3.2L\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":53152164708715,"sku":"MHLPS98-017","price":6551.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/files\/mahle-ps98-017-gi-018.jpg?v=1793211818","url":"https:\/\/www.raptorracing.ca\/products\/mahle-ms-84-89-porsche-911-carrera-3-4l-98mm-bore-74-4mm-stroke-127mm-rod-22mm-pin-43-2cc-11cr","provider":"Raptor Racing","version":"1.0","type":"link"}